<http://schema.org/headline>
"\u3010\u30C0\u30EB\u30E1\u30B7\u30A2\u30F3\u67C4\u3011\u3067\u30D2\u30E7\u30A6\u67C4\u3088\u308A\u512A\u3057\u3044\u5927\u4EBA\u3063\u307D\u3055\u3092\u6F14\u51FA\u2764"^^<http://www.w3.org/2001/XMLSchema#string>
<http://itnail.jp/articles/uFoBr>